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Class Information
Number: 148/260
Name: Metal treatment > Process of modifying or maintaining internal physical structure (i.e., microstructure) or chemical properties of metal, process of reactive coating of metal and process of chemical-heat removing (e.g., flame-cutting, etc.) or burning of metal > Processes of coating utilizing a reactive composition which reacts with metal substrate or composition therefore > Liquid reactive coating composition utilized > Contains phosphorus > Contains organic additive other than for ph control > Nitrogen-containing organic compound
Description: Subject matter wherein the organic compound contains at least one nitrogen atom.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8591638 Metal surface treatment aqueous solution and method for inhibiting whiskers on a metal surface Nov. 26, 2013
8430973 Method for the thermochemical passivation of stainless steel Apr. 30, 2013
8262810 Method for conversion treating surface of magnesium alloy workpiece Sep. 11, 2012
7942983 Phosphating solution and method for conversion treating surface of magnesium alloy workpiece May. 17, 2011
7909944 Surface conditioning composition and surface conditioning method Mar. 22, 2011
7910024 Corrosion inhibition compositions and methods for using the same Mar. 22, 2011
7344607 Non-chromate conversion coating treatment for metals Mar. 18, 2008
7294210 Use of substituted hydroxylamines in metal phosphating processes Nov. 13, 2007
7208053 Method for applying a phosphate covering and use of metal parts thus phospated Apr. 24, 2007
7041629 Stripper for special steel May. 9, 2006
7037385 Aqueous metal treatment composition May. 2, 2006
6875334 Method of anodizing of magnesium and magnesium alloys and producing conductive layers on an anodized surface Apr. 5, 2005
6858097 Brightening/passivating metal surfaces without hazard from emissions of oxides of nitrogen Feb. 22, 2005
6835460 Dry-in-place zinc phosphating compositions and processes that produce phosphate conversion coatings with improved adhesion to subsequently applied paint, sealants, and other elastomers Dec. 28, 2004
6818313 Corrosion-inhibiting coating Nov. 16, 2004
6805756 Universal aqueous coating compositions for pretreating metal surfaces Oct. 19, 2004
6758916 Composition and process for treating metals Jul. 6, 2004
6638370 Phosphate conversion coating process and composition Oct. 28, 2003
6569264 Surface-treating agent for magnesium-based part and method of surface treatment May. 27, 2003
6461450 Method for controlling the coating weight for strip-phosphating Oct. 8, 2002
6447662 Process for phosphatizing, rerinsing and cathodic electro-dipcoating Sep. 10, 2002
6395105 Phosphating process with a metalliferous re-rinsing stage May. 28, 2002
6383307 Aqueous metal treatment composition May. 7, 2002
6379474 Phosphating method accelerated by N-oxides Apr. 30, 2002
6368426 Zinc phosphate conversion coating and process Apr. 9, 2002
6361623 Method for phosphatizing iron and steel Mar. 26, 2002
6342107 Phosphate coatings for metal surfaces Jan. 29, 2002
6261384 Process and aqueous solution for phosphatizing metallic surfaces Jul. 17, 2001
6231687 Lubrication treatment method for cold working of steel May. 15, 2001
6200672 Surface-treated metal plate and metal surface treating fluid Mar. 13, 2001
6179934 Aqueous phosphating composition and process for metal surfaces Jan. 30, 2001
6153022 Composition and process for surface treatment of aluminum and its alloys Nov. 28, 2000
6096139 Triazinethiol-containing anticorrosive coating, anticorrosion treatment method, and anticorrosion treated metal materials Aug. 1, 2000
6090224 Phosphating process with a copper-containing re-rinsing stage Jul. 18, 2000
6059896 Composition and process for treating the surface of aluminiferous metals May. 9, 2000
6019858 Zinc phosphate conversion coating and process Feb. 1, 2000
6013377 Surface-treated metal material and metal surface treatment method Jan. 11, 2000
5972433 Method for treatment of metal substrates using Mannich-derived polyethers Oct. 26, 1999
5942052 Surface treatment aqueous solution for metal Aug. 24, 1999
5935348 Composition and process for preventing corrosion and reducing friction on metallic surfaces Aug. 10, 1999
5925174 Composition and process for treating the surface of copper-containing metals Jul. 20, 1999
5919318 Iron phosphating using substituted monocarboxylic acids Jul. 6, 1999
5904784 Composition and method for treating the surface of aluminiferous metals May. 18, 1999
5900074 Composition and process for treating magnesium-containing metals and product therefrom May. 4, 1999
5891268 High coating weight iron phosphating, compositions therefor, and use of the coating formed as a lubricant carrier Apr. 6, 1999
5868820 Aqueous coating compositions and coated metal surfaces Feb. 9, 1999
5792283 Nickel-free phosphating process Aug. 11, 1998
5733386 Polymer composition and method for treating metal surfaces Mar. 31, 1998
5728234 Composition and process for treating the surface of aluminiferous metals Mar. 17, 1998
5685922 Chemical conversion method and surface treatment and method for metal can Nov. 11, 1997

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